"The Simpsons" (8 p.m., Fox): The family pooch rarely grabs the spotlight in "The Simpsons." So enjoy this episode, which has Santa's Little Helper going to work as a police dog. The career change

"The Simpsons" (8 p.m., Fox): The family pooch rarely grabs the spotlight in "The Simpsons." So enjoy this episode, which has Santa's Little Helper going to work as a police dog. The career change comes after the mutt rescues Homer from a corn maze. Rudy Giuliani provides some guest voice work.
"Let's Just Play Go Healthy Challenge" (8:30 p.m., Nickelodeon): With adult guidance, kids set goals to improve their own health. New season.
"Bought & amp; Sold" (10 p.m., HGTV): Now, even Realtors are getting the reality TV treatment. The new series "Bought & amp; Sold" follows a "colorful" cast of people who work in a mid-sized brokerage agency. Watch in utter fascination as they compete to close the deal. Sounds like this one could be a fixer-upper.